Board Thread:Pokémon Help/@comment-31398341-20171026040947/@comment-27535813-20171212054357

Hayds126 wrote:

Yes I know flynium z boosted fly can nuke things easy but the same power if not more can be found with other flying moves. After that first use, you can’t use it anymore and now you essentially have 3 moves unless you plan to use fly normally for whatever reason. You are right that Fly is unviable in Competitive Play without Flynium Z, but I think you're missing the point here. A reason why we call z-moves 'nukes' is because these can only be used once and it allows certain Pokemon to break through certain threats or walls in general. There is no reason to run some other flying-type move that can be used more than once but have no value in hitting anything.